Fbatfcis mallet-guy



FIPBOOQ OR 372.423

/ a (No Model.)

P. MALLET -GUY. (a MACHINE FOR THE MANUFACTURE OF WIRE SPIRALS. 7 No. 372,423. Patented Nov. 1, 1887.

wri u HI Ill" making hinge and in ornamental drapery,

' ing progresses.

end view, ofthc mechanism made use ofby me.

. 1 A delivery-disk, b, of wood or other compressifirm.

', shaft (1 of the lathe and receives its movement iiig of this bullion with accuracy and rapidity.

UNITED STATES FRANCIS MALLET-GUY, OF PARIS, FRANCE.

MACHINE FOR 'THE MANUFACTURE OF WIRE SPIRALS.

SPECIFICATION forming part-of Letters Patent No. 372,428, dated November 1, 1887.

Application filed June 13, 1867. Serial No. 241.132. (No model.) Patented in France NovembzrlS, 1885, No. 170,550.

.T all whom it may concern.-

, Be itknown that I, FRANCIS MALLETGUY, a citizen of the Republic of France, residing at Paris, France, haveiuvented anew and useful Improvement in Machines for the Mannfacture of Fine-Tire Echoes, of which the following is'a specification.

It is well known that helices of very fine wire, sometimes called bullion, are used in &c. It is manufactured by hand, and attempts to make it by machinery have been unsatisfactory, on account of the difficulty of pushing the helix uniformly forward as the wind- Thepresent machine accomplishes the wind- I'n the accompanying drawings, Figure 1' is an elevation, Fig. 2 a plan view, and Fig. 3 an I make use of a mandrel, a, at the end of a small shaft supported in a lathestock, and this mandrel is revolved and the wire used for making the ribbon is wound upon the mandrel.

ble material is used for the purpose of moving the helix of wire uniformly and delivering itoffthe end of the mandrel or needle. and at the same time the helical wire is rendered Shears actuated by electricity are used to cut the helix into regular lengths as the manufacture goes on.

The mandrel a is partof or inserted into the from a belt passing in one of the grooves of the cone e. This shaft turns at one end in a conical bearing that is held bya screw, so that the mandrel is properly supported against any, endplay or looseness. The mandrela ends in a cylindrical or slightly-conical necdle, c, which at its base has the diameter necessary for the wire hclix. The wire is supplied from a bobbin, it, under the proper tension, and passes over a grooved pulley, g, which guides it directly to the base of the needle, around which it is wound by the rotation of the lathe.

The delivery-disk b is of wood or other compressible material, and its edge is pressed against the needle 0 with sufficient force to cause the couvolutious of the wire to bury themselves slightly in it. The disk receives a rotary movement from the revolving helix as it is wound, and its circumference receives impressions from the wire itself in the shape of small parallel grooves, in which pass successive convolutions, traveling like a screw as the wire helix revolves.

The bullion is carried along uniformly by its own rotation, the convolntions screwing themselves into the grooves of the disk as they are wound.

The disk I) is supported by carriages, one of which, t, movesparallel to the shaft of the lathe, and the other, j, at right angles to it.

It is supported by a small stock, h, which can be revolved around a vertical axis on the carriagej by means of a worm-pinion, m. This arrangement allows the disk to be placed at an inclination which causes the whole width tions. This pressure is regulated according to the degree of hardness of the wire in the helix. The screw 1 acts on the carriage j to regulate this pressure.

The same object may be obtained by means of a fixed disk, piece of wood, or similar materiai, against which'the spindle rubs as it is rotated with and upon the needle, and impress t-hereon, a portion of a female screw, 8 5 which causes the helix to be delivered off the needle by the helix acting as a screw and moving itself along as it is wound. This method can be used when the wire is sufficiently strong and stiff to prevent the friction from detaining 0 it. In this case a simple piece of wood fastened on the carriages might take the place of the disk. The uniform forward movement given by this disk allows the helix to be wound more or less open. All that is necessary isto 5 impress the grooves on the disk by a portion of the ribbon that has the desired distance between the convolutions.

Ribbons or bullion can be made composed of several wires wound side by side, and by vary- 10a ing the colors new effects can be obtained which are very difficult to obtain by the present way of manufacturing.

The ribbon can be made in any desired lengths, which could afterward be cut according to the uses it is put to; but as this article is generally put on the market in regular .5 lengths, the machine performs also the cutting operation by-means of the verysimple appa- 1 ratusthat I am about to describe. On leaving 5 the mandrel or'needle the ribbon or helix falls in a funnel, the bottom of which is formed by a steel plate, a, in which is a circular opening it, with a cutting-edge. Under this plate works 5 a cutter, o, actuated by an electromagnet, p. After passing the shears formed by the plate I n and cutter 0, the ribbon slides along an i incline, 1:, along which contact-plate s can be moved and held by a clamping-screw. This plat closes-the circuit of the clectro-magnet as as it comes in contact with the ribbon orrliullion, and the helix or ribbon is then cut uy the action of the eleetro-magnet on the dezet vices, and thereby the circuit is broken, the f shears open by means of the spring y, and the ribbon keeps on descending till a iiew contact I isestablished with the plate 8. 4 The electric eurrentemployed in cutting the ribbon canpass directly throughthe helix or ribbon,as illustrated in the drawings. In this case the current starts from the battery and :"passesthrough the electro-magnet and contact-plate s, and then through the ribbon to the lathe-stock and battery. VViththis ar- 5 the circuit through a conducto cross-section.

' Instead of having the elcetromagnetp to act directly on the shears, such shears may be actuated from the machine, and the electro-magnct ,n will onlycause this movement to take place at the right time, as shown in Fig. 4. ,I On the shaft t a cam, a, is keyed, which acts by means of the l The lever 11 is pivoted at w, to allow it to be ,5; moved outof the way of the cam by a spring, y, and the tension of this spring is ovcrco by the electro-magnct at the time of contact. l At this moment the lever'v is attracted and acted upon by the cam. This causes the other -i leverto act on the shears to cut the ribbon. The current is thereby broken, and the spring y brings-the lever 2) back out of the way of the l cam.

I am aware that r of greater previous to my invention a v *pl'riction disk has been used in wirecoiling machines to keep the wire close to the mandrel as the wire is wound spirally upon said mandrel; and I am also aware that a metal disk 1 having a peripheral groove has been used to no give the pitch to the helix of wire and to de- :termine the diameter of the helix; but I am i not aware of any instance iii-which a disk or evcrs v n on the shears 0.

me and means for l j. I

block of wood or other soft material having I grooves therein corresponding to the pitch of I the spiral has been *used to act as a female J screw to the helix upon the mandrel and thereby cause said helix to pass freely off the I mandrel. The wire employed in the manufacture of bullion is very fine, and it is sometimes flattened to form a ribbon. Said ribbon has ntuemmrr y hence a friction-' roller is not necessary to keep it to the mandrel, for the great difficulty in the manufacture of bullion is the tendency of the flattened wire to cling to the mandrel and for one coil to pass upon its nei hbor. By the use of a disk or block of wood or other soft material, having grooves there-in corresponding to the I pitch of the helix, said block or disk acts as 1 a female screw or nut upon the helix on the is mandrel and causes, said helix to screw itself, along upon the mandrel without it-being possible for one spiral to pass upon another.

I claim as my invention 1. Thecombination,withthe revolvingmanj drel or needle,- aronnd which the helix of fine wire is wound, of adisk or block of wood or I other soft material, having grooves therein corresponding to the pitch of the spirals of the helix wound upon said mandrel, and into which grooves the eonvolutions of the wire ,jj are sufficiently embedded to causethe delivery of the helix from the mandrel or needle by it the revolution of the sore stantially as specified.

2. The combination, with a revolving mandrcl or needle, upon which the fine wire is wound, of a disk or block of wood or other soft material, having grooves therein corresponding to the pitch of the spirals ot-the. helix wound upon said mandrel, the carriages i andj at right angles to each other for'supporting the disk or block, and means for adjusting said carriages, substantially as and for the purposes specified.

3. The combination,with the revolvingmandrel or needle, upon which the helix is wound, l' delivering the helix from said mandrel, of a guide-trough for said helix, a iitterioiscuttipg up the helixjpto lengths, gr;

an electro magnctwhosjpunature is conf nected to the e'u tter, a mstgme guidetrough for determining e length of the helix, and circuit-comiections, substantially as I 'f' specified, whereb the circuiti closed to said 2:5 electro-maguet whe 1' in Contact a; .aisistentan ettert 7 lhe"foi" goin specification of my improvel mentsinthemanufacture of wire spiralssigned I by me this 14th day of May, A. D. 1887. 5' FRANCIS MALLET-GUY.

\Vitnesscs:

Ronr. M. Hoo-ER, Jos. B. BOURNE.

wshaped helix, sub e5 

